security council, including north korea ally china, condemned the testing of a bomb. the emergency meeting in new york was held hours after north korea detonated a bomb. it caused a jolt, equivalent to a 4.5 magnitude earthquake. north korea is the won't only one that has tested. they are now planning to test another bomb. >> north korea and not and will not benefit from violating international law. >> reporter: u.s. ambassador to the u.n., susan rice, called this a threat to the international security. >> the u.n. security counsel must and will deliver a swift and credible strong response by way of a security council resolution. >> reporter: north korea is already one of the most heavily- sanctioned country in the world. but additional sanctions could target financial institutions both inside and outside north korea. >> reporter: south koreans staged angry protest against the north, calling on international troops to destroy north korea's nuclear facilities. protests were also held in japan. north korea warned the u.s. not to interfere in the region and said it would